[edk2-devel] [edk2-platforms][PATCH v2 15/32] JadePkg: Add PcieBoardLib library instance

Nhi Pham via groups.io nhi=os.amperecomputing.com at groups.io
Wed May 26 10:07:07 UTC 2021


From: Vu Nguyen <vunguyen at os.amperecomputing.com>

Provides basic features like:
* Screen menu to change bifurcation setting of each Root Complex. Note
  that we can only change the option for Root Complex which doesn't have
  default value in the BoardSetting.
* Parsing the BoardSetting and coordinate with saved setting to enable
  corresponding PCIe controller of each Root Complex.
* Config speed and lane of enabled controller.

Cc: Thang Nguyen <thang at os.amperecomputing.com>
Cc: Chuong Tran <chuong at os.amperecomputing.com>
Cc: Phong Vo <phong at os.amperecomputing.com>
Cc: Leif Lindholm <leif at nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney at intel.com>
Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
Cc: Nate DeSimone <nathaniel.l.desimone at intel.com>

Signed-off-by: Vu Nguyen <vunguyen at os.amperecomputing.com>
---
 Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dec                 |    3 +
 Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardLib.inf    |   60 ++
 Platform/Ampere/JadePkg/Library/PcieBoardLib/NVDataStruc.h       |   89 ++
 Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.h   |  138 +++
 Silicon/Ampere/AmpereAltraPkg/Include/Library/PcieBoardLib.h     |  102 ++
 Platform/Ampere/JadePkg/Library/PcieBoardLib/Vfr.vfr             |  212 ++++
 Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoard.c         |  438 ++++++++
 Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardCommon.c   |  327 ++++++
 Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.c   | 1120 ++++++++++++++++++++
 Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.uni |   99 ++
 10 files changed, 2588 insertions(+)

diff --git a/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dec b/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dec
index 0d79673ce50a..a372a4e0078b 100644
--- a/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dec
+++ b/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dec
@@ -40,6 +40,9 @@ [LibraryClasses]
   ##  @libraryclass  Defines a set of methods to initialize Pcie
   PcieCoreLib|Silicon/Ampere/AmpereAltraP/Include/Library/PcieCoreLib.h
 
+  ##  @libraryclass  Defines a set of miscellaneous PCIe functions
+  PcieBoardLib|Silicon/Ampere/AmpereAltraPkg/Include/Library/PcieBoardLib.h
+
   ##  @libraryclass  Defines a set of methods to access flash memory.
   FlashLib|Silicon/Ampere/AmpereAltraPkg/Include/Library/FlashLib.h
 
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardLib.inf b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardLib.inf
new file mode 100644
index 000000000000..6be78f8936d7
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardLib.inf
@@ -0,0 +1,60 @@
+## @file
+#
+# Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001001B
+  BASE_NAME                      = PcieBoardLib
+  FILE_GUID                      = 062191A6-E113-4FD6-84C7-E400B4B34759
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = PcieBoardLib
+
+[Sources]
+  PcieBoard.c
+  PcieBoardCommon.c
+  PcieBoardScreen.c
+  PcieBoardScreen.h
+  PcieBoardScreen.uni
+  NVDataStruc.h
+  Vfr.vfr
+
+[Packages]
+  ArmPlatformPkg/ArmPlatformPkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  MdePkg/MdePkg.dec
+  Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dec
+  Silicon/Ampere/AmpereSiliconPkg/AmpereSiliconPkg.dec
+
+[LibraryClasses]
+  AmpereCpuLib
+  BaseLib
+  DevicePathLib
+  GpioLib
+  HiiLib
+  HobLib
+  MemoryAllocationLib
+  SystemFirmwareInterfaceLib
+  UefiBootServicesTableLib
+  UefiLib
+  UefiRuntimeServicesTableLib
+
+[Protocols]
+  gEfiDevicePathProtocolGuid
+  gEfiHiiStringProtocolGuid                     ## CONSUMES
+  gEfiHiiConfigRoutingProtocolGuid              ## CONSUMES
+  gEfiHiiConfigAccessProtocolGuid               ## PRODUCES
+  gEfiHiiDatabaseProtocolGuid                   ## CONSUMES
+  gEfiConfigKeywordHandlerProtocolGuid          ## CONSUMES
+
+[Guids]
+  gEfiIfrTianoGuid                              ## CONSUMES
+  gPlatformManagerFormsetGuid                   ## CONSUMES
+  gPlatformHobGuid                              ## CONSUMES
+
+[Depex]
+  TRUE
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/NVDataStruc.h b/Platform/Ampere/JadePkg/Library/PcieBoardLib/NVDataStruc.h
new file mode 100644
index 000000000000..f94f12d968fd
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/NVDataStruc.h
@@ -0,0 +1,89 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef NVDATASTRUC_H_
+#define NVDATASTRUC_H_
+
+#define MAX_AC01_PCIE_SCREEN_ROOT_COMPLEX 16
+
+#define PCIE_VARSTORE_NAME        L"PcieIfrNVData"
+#define PCIE_VARSTORE_ID          0x1234
+#define PCIE_FORM_ID              0x1235
+#define PCIE_RC0_FORM_ID          0x1236
+#define PCIE_RC1_FORM_ID          0x1237
+#define PCIE_RC2_FORM_ID          0x1238
+#define PCIE_RC3_FORM_ID          0x1239
+#define PCIE_RC4_FORM_ID          0x123A
+#define PCIE_RC5_FORM_ID          0x123B
+#define PCIE_RC6_FORM_ID          0x123C
+#define PCIE_RC7_FORM_ID          0x123D
+#define PCIE_RC8_FORM_ID          0x123E
+#define PCIE_RC9_FORM_ID          0x123F
+#define PCIE_RC10_FORM_ID         0x1240
+#define PCIE_RC11_FORM_ID         0x1241
+#define PCIE_RC12_FORM_ID         0x1242
+#define PCIE_RC13_FORM_ID         0x1243
+#define PCIE_RC14_FORM_ID         0x1244
+#define PCIE_RC15_FORM_ID         0x1245
+#define PCIE_FORM_SET_GUID        { 0xe84e70d6, 0xe4b2, 0x4c6e, { 0x98,  0x51, 0xcb, 0x2b, 0xac, 0x77, 0x7d, 0xbb } }
+
+#define PCIE_GOTO_ID_BASE         0x8040
+
+#pragma pack(1)
+
+//
+// NV data structure definition
+//
+typedef struct {
+  BOOLEAN RCStatus[MAX_AC01_PCIE_SCREEN_ROOT_COMPLEX];
+  UINT8   RCBifurLo[MAX_AC01_PCIE_SCREEN_ROOT_COMPLEX];
+  UINT8   RCBifurHi[MAX_AC01_PCIE_SCREEN_ROOT_COMPLEX];
+  UINT32  SmmuPmu;
+} PCIE_VARSTORE_DATA;
+
+//
+// Labels definition
+//
+#define LABEL_UPDATE             0x2223
+#define LABEL_END                0x2224
+#define LABEL_RC0_UPDATE         0x2225
+#define LABEL_RC0_END            0x2226
+#define LABEL_RC1_UPDATE         0x2227
+#define LABEL_RC1_END            0x2228
+#define LABEL_RC2_UPDATE         0x2229
+#define LABEL_RC2_END            0x222A
+#define LABEL_RC3_UPDATE         0x222B
+#define LABEL_RC3_END            0x222C
+#define LABEL_RC4_UPDATE         0x222D
+#define LABEL_RC4_END            0x222E
+#define LABEL_RC5_UPDATE         0x222F
+#define LABEL_RC5_END            0x2230
+#define LABEL_RC6_UPDATE         0x2231
+#define LABEL_RC6_END            0x2232
+#define LABEL_RC7_UPDATE         0x2233
+#define LABEL_RC7_END            0x2234
+#define LABEL_RC8_UPDATE         0x2235
+#define LABEL_RC8_END            0x2236
+#define LABEL_RC9_UPDATE         0x2237
+#define LABEL_RC9_END            0x2238
+#define LABEL_RC10_UPDATE        0x2239
+#define LABEL_RC10_END           0x223A
+#define LABEL_RC11_UPDATE        0x223B
+#define LABEL_RC11_END           0x223C
+#define LABEL_RC12_UPDATE        0x223D
+#define LABEL_RC12_END           0x223E
+#define LABEL_RC13_UPDATE        0x223F
+#define LABEL_RC13_END           0x2240
+#define LABEL_RC14_UPDATE        0x2241
+#define LABEL_RC14_END           0x2242
+#define LABEL_RC15_UPDATE        0x2243
+#define LABEL_RC15_END           0x2244
+
+#pragma pack()
+
+#endif
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.h b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.h
new file mode 100644
index 000000000000..c5c50060870c
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.h
@@ -0,0 +1,138 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef PCIE_SCREEN_H_
+#define PCIE_SCREEN_H_
+
+#include <Guid/MdeModuleHii.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/HiiLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Protocol/FormBrowser2.h>
+#include <Protocol/HiiConfigAccess.h>
+#include <Protocol/HiiConfigKeyword.h>
+#include <Protocol/HiiConfigRouting.h>
+#include <Protocol/HiiDatabase.h>
+#include <Protocol/HiiString.h>
+
+#include "NVDataStruc.h"
+
+//
+// This is the generated IFR binary data for each formset defined in VFR.
+// This data array is ready to be used as input of HiiAddPackages() to
+// create a packagelist (which contains Form packages, String packages, etc).
+//
+extern UINT8 VfrBin[];
+
+//
+// This is the generated String package data for all .UNI files.
+// This data array is ready to be used as input of HiiAddPackages() to
+// create a packagelist (which contains Form packages, String packages, etc).
+//
+extern UINT8 PcieDxeStrings[];
+
+#define MAX_EDITABLE_ELEMENTS 3
+#define PCIE_RC0_STATUS_OFFSET  \
+  OFFSET_OF (PCIE_VARSTORE_DATA, RCStatus[0])
+#define PCIE_RC0_BIFUR_LO_OFFSET  \
+  OFFSET_OF (PCIE_VARSTORE_DATA, RCBifurLo[0])
+#define PCIE_RC0_BIFUR_HI_OFFSET  \
+  OFFSET_OF (PCIE_VARSTORE_DATA, RCBifurHi[0])
+#define PCIE_SMMU_PMU_OFFSET  \
+  OFFSET_OF (PCIE_VARSTORE_DATA, SmmuPmu)
+
+#define PCIE_SCREEN_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('P', 'C', 'I', 'E')
+
+typedef struct {
+  UINTN Signature;
+
+  EFI_HANDLE         DriverHandle;
+  EFI_HII_HANDLE     HiiHandle;
+  PCIE_VARSTORE_DATA VarStoreConfig;
+
+  //
+  // Consumed protocol
+  //
+  EFI_HII_DATABASE_PROTOCOL           *HiiDatabase;
+  EFI_HII_STRING_PROTOCOL             *HiiString;
+  EFI_HII_CONFIG_ROUTING_PROTOCOL     *HiiConfigRouting;
+  EFI_CONFIG_KEYWORD_HANDLER_PROTOCOL *HiiKeywordHandler;
+
+  //
+  // Produced protocol
+  //
+  EFI_HII_CONFIG_ACCESS_PROTOCOL ConfigAccess;
+} PCIE_SCREEN_PRIVATE_DATA;
+
+typedef union {
+  UINT16 VAR_ID;
+  struct _PCIE_VAR_ID {
+    UINT16 PciDevIndex     : 12;
+    UINT16 DataType        : 3;
+    UINT16 Always1         : 1;
+  } IdField;
+} PCIE_VAR_ID;
+
+typedef struct {
+  UINTN         PciDevIdx;
+  EFI_STRING_ID GotoStringId;
+  EFI_STRING_ID GotoHelpStringId;
+  UINT16        GotoKey;
+  BOOLEAN       ShowItem;
+} PCIE_SETUP_GOTO_DATA;
+
+typedef struct {
+  VOID               *StartOpCodeHandle;
+  VOID               *EndOpCodeHandle;
+  EFI_IFR_GUID_LABEL *StartLabel;
+  EFI_IFR_GUID_LABEL *EndLabel;
+
+} PCIE_IFR_INFO;
+
+#define PCIE_SCREEN_PRIVATE_FROM_THIS(a)  \
+  CR (a, PCIE_SCREEN_PRIVATE_DATA, ConfigAccess, PCIE_SCREEN_PRIVATE_DATA_SIGNATURE)
+
+#pragma pack(1)
+
+///
+/// HII specific Vendor Device Path definition.
+///
+typedef struct {
+  VENDOR_DEVICE_PATH       VendorDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL End;
+} HII_VENDOR_DEVICE_PATH;
+
+#pragma pack()
+
+UINT8
+PcieRCDevMapLoDefaultSetting (
+  IN UINTN                    RCIndex,
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  );
+
+UINT8
+PcieRCDevMapHiDefaultSetting (
+  IN UINTN                    RCIndex,
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  );
+
+BOOLEAN
+PcieRCActiveDefaultSetting (
+  IN UINTN                    RCIndex,
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  );
+
+#endif /* PCIE_SCREEN_H_ */
diff --git a/Silicon/Ampere/AmpereAltraPkg/Include/Library/PcieBoardLib.h b/Silicon/Ampere/AmpereAltraPkg/Include/Library/PcieBoardLib.h
new file mode 100644
index 000000000000..bff5b62ba13b
--- /dev/null
+++ b/Silicon/Ampere/AmpereAltraPkg/Include/Library/PcieBoardLib.h
@@ -0,0 +1,102 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef PCIE_BOARD_LIB_H_
+#define PCIE_BOARD_LIB_H_
+
+#include "Pcie.h"
+
+/**
+
+  Check if a PCIE port enabled in the board configuration.
+
+  @param  Index                     The port index.
+
+  @retval                           TRUE if the port enabled, otherwise FALSE.
+
+**/
+BOOLEAN
+PcieBoardCheckSysSlotEnabled (
+  IN UINTN Index
+  );
+
+VOID
+PcieBoardGetRCSegmentNumber (
+  IN  AC01_RC *RC,
+  OUT UINTN   *SegmentNumber
+  );
+
+/**
+
+  Check if SMM PMU enabled in board screen
+
+  @retval                           TRUE if the SMMU PMU enabled, otherwise FALSE.
+
+**/
+BOOLEAN
+PcieBoardCheckSmmuPmuEnabled (
+  VOID
+  );
+
+/**
+
+  Build UEFI menu.
+
+  @param  ImageHandle               Handle.
+  @param  SystemTable               Pointer to System Table.
+  @param  RCList                    List of Root Complex with properties.
+
+  @retval                           EFI_SUCCESS if successful, otherwise EFI_ERROR.
+
+**/
+EFI_STATUS
+PcieBoardScreenInitialize (
+  IN EFI_HANDLE       ImageHandle,
+  IN EFI_SYSTEM_TABLE *SystemTable,
+  IN AC01_RC          *RCList
+  );
+
+BOOLEAN
+IsEmptyRC (
+  IN AC01_RC *RC
+  );
+
+VOID
+PcieBoardSetupDevmap (
+  IN AC01_RC *RC
+  );
+
+VOID
+PcieBoardGetLaneAllocation (
+  IN AC01_RC *RC
+  );
+
+VOID
+PcieBoardGetSpeed (
+  IN AC01_RC *RC
+  );
+
+VOID
+PcieBoardParseRCParams (
+  IN AC01_RC *RC
+  );
+
+VOID
+PcieBoardAssertPerst (
+  AC01_RC *RC,
+  UINT32  PcieIndex,
+  UINT8   Bifurcation,
+  BOOLEAN isPullToHigh
+  );
+
+BOOLEAN
+PcieBoardCheckSmmuPmuEnabled (
+  VOID
+  );
+
+#endif /* PCIE_BOARD_LIB_H_ */
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/Vfr.vfr b/Platform/Ampere/JadePkg/Library/PcieBoardLib/Vfr.vfr
new file mode 100644
index 000000000000..a596d5ac9a92
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/Vfr.vfr
@@ -0,0 +1,212 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "NVDataStruc.h"
+
+formset
+  guid    = PCIE_FORM_SET_GUID,
+  title   = STRING_TOKEN(STR_PCIE_FORM),
+  help    = STRING_TOKEN(STR_PCIE_FORM_HELP),
+  classguid = gPlatformManagerFormsetGuid,
+
+  //
+  // Define a variable Storage
+  //
+  varstore PCIE_VARSTORE_DATA,
+    varid = PCIE_VARSTORE_ID,
+    name  = PcieIfrNVData,
+    guid  = PCIE_FORM_SET_GUID;
+
+  form
+    formid = PCIE_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_FORM);
+
+    label LABEL_UPDATE;
+    // dynamic content here
+    label LABEL_END;
+  endform;
+
+  form
+    formid = PCIE_RC0_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC0_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC0_FORM);
+
+    label LABEL_RC0_UPDATE;
+    // dynamic content here
+    label LABEL_RC0_END;
+  endform;
+
+  form
+    formid = PCIE_RC1_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC1_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC1_FORM);
+
+    label LABEL_RC1_UPDATE;
+    // dynamic content here
+    label LABEL_RC1_END;
+  endform;
+
+  form
+    formid = PCIE_RC2_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC2_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC2_FORM);
+
+    label LABEL_RC2_UPDATE;
+    // dynamic content here
+    label LABEL_RC2_END;
+  endform;
+
+  form
+    formid = PCIE_RC3_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC3_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC3_FORM);
+
+    label LABEL_RC3_UPDATE;
+    // dynamic content here
+    label LABEL_RC3_END;
+  endform;
+
+  form
+    formid = PCIE_RC4_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC4_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC4_FORM);
+
+    label LABEL_RC4_UPDATE;
+    // dynamic content here
+    label LABEL_RC4_END;
+  endform;
+
+  form
+    formid = PCIE_RC5_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC5_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC5_FORM);
+
+    label LABEL_RC5_UPDATE;
+    // dynamic content here
+    label LABEL_RC5_END;
+  endform;
+
+  form
+    formid = PCIE_RC6_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC6_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC6_FORM);
+
+    label LABEL_RC6_UPDATE;
+    // dynamic content here
+    label LABEL_RC6_END;
+  endform;
+
+  form
+    formid = PCIE_RC7_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC7_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC7_FORM);
+
+    label LABEL_RC7_UPDATE;
+    // dynamic content here
+    label LABEL_RC7_END;
+  endform;
+
+  form
+    formid = PCIE_RC8_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC8_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC8_FORM);
+
+    label LABEL_RC8_UPDATE;
+    // dynamic content here
+    label LABEL_RC8_END;
+  endform;
+
+  form
+    formid = PCIE_RC9_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC9_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC9_FORM);
+
+    label LABEL_RC9_UPDATE;
+    // dynamic content here
+    label LABEL_RC9_END;
+  endform;
+
+  form
+    formid = PCIE_RC10_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC10_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC10_FORM);
+
+    label LABEL_RC10_UPDATE;
+    // dynamic content here
+    label LABEL_RC10_END;
+  endform;
+
+  form
+    formid = PCIE_RC11_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC11_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC11_FORM);
+
+    label LABEL_RC11_UPDATE;
+    // dynamic content here
+    label LABEL_RC11_END;
+  endform;
+
+  form
+    formid = PCIE_RC12_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC12_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC12_FORM);
+
+    label LABEL_RC12_UPDATE;
+    // dynamic content here
+    label LABEL_RC12_END;
+  endform;
+
+  form
+    formid = PCIE_RC13_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC13_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC13_FORM);
+
+    label LABEL_RC13_UPDATE;
+    // dynamic content here
+    label LABEL_RC13_END;
+  endform;
+
+  form
+    formid = PCIE_RC14_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC14_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC14_FORM);
+
+    label LABEL_RC14_UPDATE;
+    // dynamic content here
+    label LABEL_RC14_END;
+  endform;
+
+  form
+    formid = PCIE_RC15_FORM_ID,
+    title = STRING_TOKEN(STR_PCIE_RC15_FORM);
+
+    subtitle text = STRING_TOKEN(STR_PCIE_RC15_FORM);
+
+    label LABEL_RC15_UPDATE;
+    // dynamic content here
+    label LABEL_RC15_END;
+  endform;
+
+endformset;
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoard.c b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoard.c
new file mode 100644
index 000000000000..c0c94d349b5b
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoard.c
@@ -0,0 +1,438 @@
+/** @file
+
+  Pcie board specific driver to handle asserting PERST signal to Endpoint
+  card and parsing NVPARAM board settings for bifurcation programming.
+
+  PERST asserting is via group of GPIO pins to CPLD as Platform Specification.
+
+  NVPARAM board settings is spec-ed within Firmware Interface Requirement.
+  Bifuration devmap is programmed before at SCP following the rule
+
+  Root Complex Type-A devmap settings (RP == Root Port)
+  -----------------------------------------
+  | RP0   | RP1  | RP2  | RP3  | Devmap   |
+  | (x16) | (x4) | (x8) | (x4) | (output) |
+  -------------------------------------------
+  |  Y    |  N   |  N   |  N   | 0        |
+  |  Y    |  N   |  Y   |  N   | 1        |
+  |  Y    |  N   |  Y   |  Y   | 2        |
+  |  Y    |  Y   |  Y   |  Y   | 3        |
+  -----------------------------------------
+
+  Root Complex Type-B LO (aka RCBxA) devmap settings (RP == Root Port)
+  ----------------------------------------
+  | RP0  | RP1  | RP2  | RP3  | Devmap   |
+  | (x8) | (x2) | (x4) | (x3) | (output) |
+  ----------------------------------------
+  |  Y   |  N   |  N   |  N   | 0        |
+  |  Y   |  N   |  Y   |  N   | 1        |
+  |  Y   |  N   |  Y   |  Y   | 2        |
+  |  Y   |  Y   |  Y   |  Y   | 3        |
+  ----------------------------------------
+
+  Root Complex Type-B LO (aka RCBxB) devmap settings (RP == Root Port)
+  ----------------------------------------
+  | RP4  | RP5  | RP6  | RP7  | Devmap   |
+  | (x8) | (x2) | (x4) | (x3) | (output) |
+  ----------------------------------------
+  |  Y   |  N   |  N   |  N   | 0        |
+  |  Y   |  N   |  Y   |  N   | 1        |
+  |  Y   |  N   |  Y   |  Y   | 2        |
+  |  Y   |  Y   |  Y   |  Y   | 3        |
+  ----------------------------------------
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Guid/PlatformInfoHobGuid.h>
+#include <Library/AmpereCpuLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/GpioLib.h>
+#include <Library/HobLib.h>
+#include <Library/IoLib.h>
+#include <Library/NVParamLib.h>
+#include <Library/PcieBoardLib.h>
+#include <Library/TimerLib.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <NVDataStruc.h>
+#include <NVParamDef.h>
+#include <Pcie.h>
+#include <PlatformInfoHob.h>
+
+#ifndef BIT
+#define BIT(nr)                         (1 << (nr))
+#endif
+
+extern CHAR16   VariableName[];
+extern EFI_GUID gPcieFormSetGuid;
+
+VOID
+EFIAPI
+PcieBoardLoadPreset (
+  IN AC01_RC *RC
+  )
+{
+  UINT32 Nv;
+  INTN   NvParam;
+  INTN   Ret;
+  INTN   i;
+
+  // Load default value
+  for (i = 0; i < MAX_PCIE_B; i++) {
+    RC->PresetGen3[i] = PRESET_INVALID;
+    RC->PresetGen4[i] = PRESET_INVALID;
+  }
+
+  // Load override value
+  if (RC->Socket == 0) {
+    if (RC->Type == RCA) {
+      if (RC->ID < 4) {
+        NvParam = NV_SI_RO_BOARD_S0_RCA0_TXRX_G3PRESET + RC->ID * NVPARAM_SIZE;
+      } else {
+        NvParam = NV_SI_RO_BOARD_S0_RCA4_TXRX_G3PRESET + (RC->ID - 4) * NVPARAM_SIZE;
+      }
+    } else {
+      NvParam = NV_SI_RO_BOARD_S0_RCB0A_TXRX_G3PRESET + (RC->ID - 4) * (2 * NVPARAM_SIZE);
+    }
+  } else if (RC->Type == RCA) {
+    if (RC->ID < 4) {
+      NvParam = NV_SI_RO_BOARD_S1_RCA2_TXRX_G3PRESET + (RC->ID - 2) * NVPARAM_SIZE;
+    } else {
+      NvParam = NV_SI_RO_BOARD_S1_RCA4_TXRX_G3PRESET + (RC->ID - 4) * NVPARAM_SIZE;
+    }
+  } else {
+    NvParam = NV_SI_RO_BOARD_S1_RCB0A_TXRX_G3PRESET + (RC->ID - 4) * (2 * NVPARAM_SIZE);
+  }
+
+  Ret = NVParamGet ((NVPARAM)NvParam, NV_PERM_ALL, &Nv);
+  if (Ret == EFI_SUCCESS) {
+    for (i = 0; i < 4; i++) {
+      RC->PresetGen3[i] = (Nv >> (NVPARAM_SIZE * i)) & 0xFF;
+    }
+  }
+
+  if (RC->Type == RCB) {
+    NvParam += NVPARAM_SIZE;
+    Ret = NVParamGet ((NVPARAM)NvParam, NV_PERM_ALL, &Nv);
+    if (Ret == EFI_SUCCESS) {
+      for (i = 0; i < 4; i++) {
+        RC->PresetGen3[i] = (Nv >> (NVPARAM_SIZE * i)) & 0xFF;
+      }
+    }
+  }
+
+  if (RC->Socket == 0) {
+    if (RC->Type == RCA) {
+      if (RC->ID < 4) {
+        NvParam = NV_SI_RO_BOARD_S0_RCA0_TXRX_G4PRESET + RC->ID * NVPARAM_SIZE;
+      } else {
+        NvParam = NV_SI_RO_BOARD_S0_RCA4_TXRX_G4PRESET + (RC->ID - 4) * NVPARAM_SIZE;
+      }
+    } else {
+      NvParam = NV_SI_RO_BOARD_S0_RCB0A_TXRX_G4PRESET + (RC->ID - 4) * (2 * NVPARAM_SIZE);
+    }
+  } else if (RC->Type == RCA) {
+    if (RC->ID < 4) {
+      NvParam = NV_SI_RO_BOARD_S1_RCA2_TXRX_G4PRESET + (RC->ID - 2) * NVPARAM_SIZE;
+    } else {
+      NvParam = NV_SI_RO_BOARD_S1_RCA4_TXRX_G4PRESET + (RC->ID - 4) * NVPARAM_SIZE;
+    }
+  } else {
+    NvParam = NV_SI_RO_BOARD_S1_RCB0A_TXRX_G4PRESET + (RC->ID - 4) * (2 * NVPARAM_SIZE);
+  }
+
+  Ret = NVParamGet ((NVPARAM)NvParam, NV_PERM_ALL, &Nv);
+  if (Ret == EFI_SUCCESS) {
+    for (i = 0; i < 4; i++) {
+      RC->PresetGen4[i] = (Nv >> (8 * i)) & 0xFF;
+    }
+  }
+
+  if (RC->Type == RCB) {
+    NvParam += NVPARAM_SIZE;
+    Ret = NVParamGet ((NVPARAM)NvParam, NV_PERM_ALL, &Nv);
+    if (Ret == EFI_SUCCESS) {
+      for (i = 0; i < 4; i++) {
+        RC->PresetGen4[i + 4] = (Nv >> (8 * i)) & 0xFF;
+      }
+    }
+  }
+}
+
+VOID
+EFIAPI
+PcieBoardParseRCParams (
+  IN AC01_RC *RC
+  )
+{
+  UINT32             Efuse;
+  PLATFORM_INFO_HOB  *PlatformHob;
+  UINT8              PlatRCId;
+  EFI_STATUS         Status;
+  VOID               *Hob;
+  UINTN              BufferSize;
+  PCIE_VARSTORE_DATA VarStoreConfig = {
+    .RCStatus = {TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, FALSE, TRUE,
+                 TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE},
+    .RCBifurLo = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    .RCBifurHi = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    .SmmuPmu = 0
+  };
+
+  PCIE_DEBUG ("%a - Socket%d RC%d\n", __FUNCTION__, RC->Socket, RC->ID);
+
+  PlatRCId = RC->Socket * RCS_PER_SOCKET + RC->ID;
+  // Get RC activation status
+  BufferSize = sizeof (PCIE_VARSTORE_DATA);
+  Status = gRT->GetVariable (
+                  VariableName,
+                  &gPcieFormSetGuid,
+                  NULL,
+                  &BufferSize,
+                  &VarStoreConfig
+                  );
+  if (EFI_ERROR (Status)) {
+    PCIE_DEBUG ("%a - Failed to read PCIE variable data from config store.\n", __FUNCTION__);
+  }
+
+  RC->Active = VarStoreConfig.RCStatus[PlatRCId];
+  RC->DevMapLo = VarStoreConfig.RCBifurLo[PlatRCId];
+  RC->DevMapHi = VarStoreConfig.RCBifurHi[PlatRCId];
+
+  PCIE_DEBUG (
+    "%a - Socket%d RC%d is %s\n",
+    __FUNCTION__,
+    RC->Socket,
+    RC->ID,
+    (RC->Active) ? "ACTIVE" : "INACTIVE"
+    );
+
+  if (!IsSlaveSocketActive () && RC->Socket == 1) {
+    RC->Active = FALSE;
+  }
+
+  if (RC->Active) {
+    //
+    // Consolidate with E-fuse
+    //
+    Efuse = 0;
+    Hob = GetFirstGuidHob (&gPlatformHobGuid);
+    if (Hob != NULL) {
+      PlatformHob = (PLATFORM_INFO_HOB *)GET_GUID_HOB_DATA (Hob);
+      Efuse = PlatformHob->RcDisableMask[0] | (PlatformHob->RcDisableMask[1] << RCS_PER_SOCKET);
+      PCIE_DEBUG (
+        "RcDisableMask[0]: 0x%x [1]: 0x%x\n",
+        PlatformHob->RcDisableMask[0],
+        PlatformHob->RcDisableMask[1]
+        );
+
+      // Update errata flags for Ampere Altra
+      if ((PlatformHob->ScuProductId[0] & 0xff) == 0x01) {
+        if (PlatformHob->AHBCId[0] == 0x20100
+            || PlatformHob->AHBCId[0] == 0x21100
+            || (IsSlaveSocketActive ()
+                && (PlatformHob->AHBCId[1] == 0x20100
+                    || PlatformHob->AHBCId[1] == 0x21100)))
+        {
+          RC->Flags |= PCIE_ERRATA_SPEED1;
+          PCIE_DEBUG ("RC[%d]: Flags 0x%x\n", RC->ID, RC->Flags);
+        }
+      }
+    }
+
+    RC->Active = (RC->Active && !(Efuse & BIT (PlatRCId))) ? TRUE : FALSE;
+  }
+
+  /* Load Gen3/Gen4 preset */
+  PcieBoardLoadPreset (RC);
+  PcieBoardGetLaneAllocation (RC);
+  PcieBoardSetupDevmap (RC);
+  PcieBoardGetSpeed (RC);
+}
+
+VOID
+EFIAPI
+PcieBoardReleaseAllPerst (
+  IN UINT8 SocketId
+  )
+{
+  UINT32 GpioIndex, GpioPin;
+
+  // Write 1 to all GPIO[16..21] to release all PERST
+  GpioPin = GPIO_DWAPB_PINS_PER_SOCKET * SocketId + 16;
+  for (GpioIndex = 0; GpioIndex < 6; GpioIndex++) {
+    GpioModeConfig (GpioPin + GpioIndex, GPIO_CONFIG_OUT_HI);
+  }
+}
+
+VOID
+EFIAPI
+PcieBoardAssertPerst (
+  AC01_RC *RC,
+  UINT32  PcieIndex,
+  UINT8   Bifurcation,
+  BOOLEAN isPullToHigh
+  )
+{
+  UINT32 GpioGroupVal, Val, GpioIndex, GpioPin;
+
+  /*
+   * For Post-silicon, Fansipan board is using GPIO combination (GPIO[16..21])
+   * to control CPLD.
+   * It should be follow PCIE RESET TABLE in Fansipan schematic.
+   *
+   * Depend on Bifurcation settings, will active corresponding PERST pin or not
+   */
+
+  if (RC->Type == RCA) {
+    switch (Bifurcation) {
+    case 0:                 // RCA_BIFURCATION_ONE_X16:
+      if (PcieIndex != 0) { // 1,2,3
+      }
+      break;
+
+    case 1:                                       // RCA_BIFURCATION_TWO_X8:
+      if ((PcieIndex == 1) || (PcieIndex == 3)) { // 1,3
+      }
+      break;
+
+    case 2:                 // RCA_BIFURCATION_ONE_X8_TWO_X4:
+      if (PcieIndex == 1) { // 1
+      }
+      break;
+
+    case 3: // RCA_BIFURCATION_FOUR_X4:
+      break;
+
+    default:
+      PCIE_DEBUG ("Invalid Bifurcation setting\n");
+      break;
+    }
+  } else { // RCB
+    switch (Bifurcation) {
+    case 0:                                       // RCB_BIFURCATION_ONE_X8:
+      if ((PcieIndex != 0) && (PcieIndex != 4)) { // 1,2,3,5,6,7
+      }
+      break;
+
+    case 1:                       // RCB_BIFURCATION_TWO_X4:
+      if ((PcieIndex % 2) != 0) { // 1,3,5,7
+      }
+      break;
+
+    case 2: // RCB_BIFURCATION_ONE_X4_TWO_X2:
+      if ((PcieIndex == 1) || (PcieIndex == 5)) {
+      }
+      break;
+
+    case 3: // RCB_BIFURCATION_FOUR_X2:
+      break;
+
+    default:
+      PCIE_DEBUG ("Invalid Bifurcation setting\n");
+      break;
+    }
+  }
+
+  if (!isPullToHigh) { // Pull PERST to Low
+    if (RC->Type == RCA) { // RCA: RC->ID: 0->3 ; PcieIndex: 0->3
+      GpioGroupVal = 62 - RC->ID*4 - PcieIndex;
+    }
+    else { // RCB: RC->ID: 4->7 ; PcieIndex: 0->7
+      GpioGroupVal = 46 - (RC->ID - 4)*8 - PcieIndex;
+    }
+
+    GpioPin = GPIO_DWAPB_PINS_PER_SOCKET * RC->Socket + 16;
+    for (GpioIndex = 0; GpioIndex < 6; GpioIndex++) {
+      // 6: Number of GPIO pins to control via CPLD
+      Val = (GpioGroupVal & 0x3F) & (1 << GpioIndex);
+      if (Val == 0) {
+        GpioModeConfig (GpioPin + GpioIndex, GPIO_CONFIG_OUT_LOW);
+      } else {
+        GpioModeConfig (GpioPin + GpioIndex, GPIO_CONFIG_OUT_HI);
+      }
+    }
+
+    // Keep reset as low as 100 ms as specification
+    MicroSecondDelay (100 * 1000);
+  } else { // Pull PERST to High
+    PcieBoardReleaseAllPerst (RC->Socket);
+  }
+}
+
+/**
+ * Overrride the segment number for a root complex with
+ * a board specific number.
+ **/
+VOID
+EFIAPI
+PcieBoardGetRCSegmentNumber (
+  IN  AC01_RC *RC,
+  OUT UINTN   *SegmentNumber
+  )
+{
+  if (RC->Socket == 0) {
+    if (RC->Type == RCA) {
+      switch (RC->ID) {
+      case 0:
+        *SegmentNumber = 12;
+        break;
+
+      case 1:
+        *SegmentNumber = 13;
+        break;
+
+      case 2:
+        *SegmentNumber = 1;
+        break;
+
+      case 3:
+        *SegmentNumber = 0;
+        break;
+
+        default:
+          *SegmentNumber = 16;
+      }
+    } else { /* Socket0, CCIX: RCA0 and RCA1 */
+      *SegmentNumber = RC->ID - 2;
+    }
+  } else { /* Socket1, CCIX: RCA0 and RCA1 */
+    if (RC->ID == 0 || RC->ID == 1) {
+      *SegmentNumber = 16;
+    } else {
+      *SegmentNumber = 4 + RC->ID;
+    }
+  }
+}
+
+BOOLEAN
+EFIAPI
+PcieBoardCheckSmmuPmuEnabled (
+  VOID
+  )
+{
+  EFI_GUID           PcieFormSetGuid = PCIE_FORM_SET_GUID;
+  PCIE_VARSTORE_DATA VarStoreConfig;
+  UINTN              BufferSize;
+  EFI_STATUS         Status;
+
+  // Get Buffer Storage data from EFI variable
+  BufferSize = sizeof (PCIE_VARSTORE_DATA);
+  Status = gRT->GetVariable (
+                  PCIE_VARSTORE_NAME,
+                  &PcieFormSetGuid,
+                  NULL,
+                  &BufferSize,
+                  &VarStoreConfig
+                  );
+  if (EFI_ERROR (Status)) {
+    return FALSE;
+  }
+
+  return VarStoreConfig.SmmuPmu;
+}
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardCommon.c b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardCommon.c
new file mode 100644
index 000000000000..a8accbf53047
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardCommon.c
@@ -0,0 +1,327 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/NVParamLib.h>
+#include <Library/SystemFirmwareInterfaceLib.h>
+#include <NVParamDef.h>
+
+#include "Pcie.h"
+
+/* Host bridge registers */
+#define HBRCAPDMR    0x0
+#define HBRCBPDMR    0x4
+
+/* HBRCAPDMR */
+#define RCAPCIDEVMAP_SET(dst, src) \
+  (((dst) & ~0x7) | (((UINT32)(src)) & 0x7))
+
+/* HBRCBPDMR */
+#define RCBPCIDEVMAPLO_SET(dst, src) \
+  (((dst) & ~0x7) | (((UINT32)(src)) & 0x7))
+#define RCBPCIDEVMAPHI_SET(dst, src) \
+  (((dst) & ~0x70) | (((UINT32)(src) << 4) & 0x70))
+
+#define PCIE_GET_MAX_WIDTH(Pcie, Max) \
+  !((Pcie).MaxWidth) ? (Max) : MIN((Pcie).MaxWidth, (Max))
+
+BOOLEAN
+IsEmptyRC (
+  IN AC01_RC *RC
+  )
+{
+  INTN Idx;
+
+  for (Idx = PCIE_0; Idx < MAX_PCIE; Idx++) {
+    if (RC->Pcie[Idx].Active) {
+      return FALSE;
+    }
+  }
+
+  return TRUE;
+}
+
+VOID
+PcieBoardSetRCBifur (
+  IN AC01_RC *RC,
+  IN UINT8   RPStart,
+  IN UINT8   DevMap
+  )
+{
+  UINT8 MaxWidth;
+
+  if (RPStart != PCIE_0 && RPStart != PCIE_4) {
+    return;
+  }
+
+  if (RC->Type != RCB && RPStart == PCIE_4) {
+    return;
+  }
+
+  if (RC->Type == RCA && RC->Pcie[RPStart].MaxWidth == LNKW_X16) {
+    RC->Pcie[RPStart + 1].MaxWidth = LNKW_X4;
+    RC->Pcie[RPStart + 2].MaxWidth = LNKW_X8;
+    RC->Pcie[RPStart + 3].MaxWidth = LNKW_X4;
+  }
+
+  if (RC->Type == RCB && RC->Pcie[RPStart].MaxWidth == LNKW_X8) {
+    RC->Pcie[RPStart + 1].MaxWidth = LNKW_X2;
+    RC->Pcie[RPStart + 2].MaxWidth = LNKW_X4;
+    RC->Pcie[RPStart + 3].MaxWidth = LNKW_X2;
+  }
+
+  switch (DevMap) {
+  case 1:
+    MaxWidth = (RC->Type == RCA) ? LNKW_X8 : LNKW_X4;
+    RC->Pcie[RPStart].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart], MaxWidth);
+    RC->Pcie[RPStart + 1].Active = 0;
+    RC->Pcie[RPStart + 2].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart + 2], MaxWidth);
+    RC->Pcie[RPStart + 2].Active = 1;
+    RC->Pcie[RPStart + 3].Active = 0;
+    break;
+
+  case 2:
+    MaxWidth = (RC->Type == RCA) ? LNKW_X8 : LNKW_X4;
+    RC->Pcie[RPStart].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart], MaxWidth);
+    RC->Pcie[RPStart + 1].Active = 0;
+    MaxWidth = (RC->Type == RCA) ? LNKW_X4 : LNKW_X2;
+    RC->Pcie[RPStart + 2].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart + 2], MaxWidth);
+    RC->Pcie[RPStart + 2].Active = 1;
+    RC->Pcie[RPStart + 3].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart + 3], MaxWidth);
+    RC->Pcie[RPStart + 3].Active = 1;
+    break;
+
+  case 3:
+    MaxWidth = (RC->Type == RCA) ? LNKW_X4 : LNKW_X2;
+    RC->Pcie[RPStart].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart], MaxWidth);
+    RC->Pcie[RPStart + 1].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart + 1], MaxWidth);
+    RC->Pcie[RPStart + 1].Active = 1;
+    RC->Pcie[RPStart + 2].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart + 2], MaxWidth);
+    RC->Pcie[RPStart + 2].Active = 1;
+    RC->Pcie[RPStart + 3].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart + 3], MaxWidth);
+    RC->Pcie[RPStart + 3].Active = 1;
+    break;
+
+  case 0:
+  default:
+    MaxWidth = (RC->Type == RCA) ? LNKW_X16 : LNKW_X8;
+    RC->Pcie[RPStart].MaxWidth = PCIE_GET_MAX_WIDTH (RC->Pcie[RPStart], MaxWidth);
+    RC->Pcie[RPStart + 1].Active = 0;
+    RC->Pcie[RPStart + 2].Active = 0;
+    RC->Pcie[RPStart + 3].Active = 0;
+    break;
+  }
+}
+
+VOID
+PcieBoardGetLaneAllocation (
+  IN AC01_RC *RC
+  )
+{
+  INTN    RPIndex, Ret;
+  UINT32  Nv, Width;
+  NVPARAM NvParam;
+
+  // Retrieve lane allocation and capabilities for each controller
+  if (RC->Type == RCA) {
+    NvParam = NV_SI_RO_BOARD_S0_RCA0_CFG + RC->Socket * 96 +
+                RC->ID * 8;
+  } else {
+    NvParam = NV_SI_RO_BOARD_S0_RCB0_LO_CFG + RC->Socket * 96 +
+              (RC->ID - MAX_RCA) * 16;
+  }
+
+  Ret = NVParamGet (NvParam, NV_PERM_ALL, &Nv);
+  Nv = (Ret != EFI_SUCCESS) ? 0 : Nv;
+
+  for (RPIndex = 0; RPIndex < MAX_PCIE_A; RPIndex++) {
+    Width = (Nv >> (RPIndex * 8)) & 0xF;
+    switch (Width) {
+    case 1:
+    case 2:
+    case 3:
+    case 4:
+      RC->Pcie[RPIndex].MaxWidth = 1 << Width;
+      RC->Pcie[RPIndex].MaxGen = SPEED_GEN3;
+      RC->Pcie[RPIndex].Active = TRUE;
+      break;
+
+    case 0:
+    default:
+      RC->Pcie[RPIndex].MaxWidth = LNKW_NONE;
+      RC->Pcie[RPIndex].MaxGen = 0;
+      RC->Pcie[RPIndex].Active = FALSE;
+      break;
+    }
+  }
+
+  if (RC->Type == RCB) {
+    // Processing Hi
+    NvParam += 8;
+    Ret = NVParamGet (NvParam, NV_PERM_ALL, &Nv);
+    Nv = (Ret != EFI_SUCCESS) ? 0 : Nv;
+
+    for (RPIndex = MAX_PCIE_A; RPIndex < MAX_PCIE; RPIndex++) {
+      Width = (Nv >> ((RPIndex - MAX_PCIE_A) * 8)) & 0xF;
+      switch (Width) {
+      case 1:
+      case 2:
+      case 3:
+      case 4:
+        RC->Pcie[RPIndex].MaxWidth = 1 << Width;
+        RC->Pcie[RPIndex].MaxGen = SPEED_GEN3;
+        RC->Pcie[RPIndex].Active = TRUE;
+        break;
+
+      case 0:
+      default:
+        RC->Pcie[RPIndex].MaxWidth = LNKW_NONE;
+        RC->Pcie[RPIndex].MaxGen = 0;
+        RC->Pcie[RPIndex].Active = FALSE;
+        break;
+      }
+    }
+  }
+
+  // Do not proceed if no Root Port enabled
+  if (IsEmptyRC (RC)) {
+    RC->Active = FALSE;
+  }
+}
+
+VOID
+PcieBoardSetupDevmap (
+  IN AC01_RC *RC
+  )
+{
+  UINT32 Val;
+
+  if (RC->Pcie[PCIE_0].Active
+      && RC->Pcie[PCIE_1].Active
+      && RC->Pcie[PCIE_2].Active
+      && RC->Pcie[PCIE_3].Active)
+  {
+    RC->DefaultDevMapLo = 3;
+  } else if (RC->Pcie[PCIE_0].Active
+             && RC->Pcie[PCIE_2].Active
+             && RC->Pcie[PCIE_3].Active)
+  {
+    RC->DefaultDevMapLo = 2;
+  } else if (RC->Pcie[PCIE_0].Active
+             && RC->Pcie[PCIE_2].Active)
+  {
+    RC->DefaultDevMapLo = 1;
+  } else {
+    RC->DefaultDevMapLo = 0;
+  }
+
+  if (RC->Pcie[PCIE_4].Active
+      && RC->Pcie[PCIE_5].Active
+      && RC->Pcie[PCIE_6].Active
+      && RC->Pcie[PCIE_7].Active)
+  {
+    RC->DefaultDevMapHi = 3;
+  } else if (RC->Pcie[PCIE_4].Active
+             && RC->Pcie[PCIE_6].Active
+             && RC->Pcie[PCIE_7].Active)
+  {
+    RC->DefaultDevMapHi = 2;
+  } else if (RC->Pcie[PCIE_4].Active
+             && RC->Pcie[PCIE_6].Active)
+  {
+    RC->DefaultDevMapHi = 1;
+  } else {
+    RC->DefaultDevMapHi = 0;
+  }
+
+  if (RC->DevMapLo == 0) {
+    RC->DevMapLo = RC->DefaultDevMapLo;
+  }
+
+  if (RC->Type == RCB && RC->DevMapHi == 0) {
+    RC->DevMapHi = RC->DefaultDevMapHi;
+  }
+
+  PcieBoardSetRCBifur (RC, PCIE_0, RC->DevMapLo);
+  if (RC->Type == RCB) {
+    PcieBoardSetRCBifur (RC, PCIE_4, RC->DevMapHi);
+  }
+
+  if (RC->Active) {
+    if (RC->Type == RCA) {
+      if (!EFI_ERROR (MailboxMsgRegisterRead (RC->Socket, RC->HBAddr + HBRCAPDMR, &Val))) {
+        Val = RCAPCIDEVMAP_SET (Val, RC->DevMapLo & 0x7);
+        MailboxMsgRegisterWrite (RC->Socket, RC->HBAddr + HBRCAPDMR, Val);
+      }
+    } else {
+      if (!EFI_ERROR (MailboxMsgRegisterRead (RC->Socket, RC->HBAddr + HBRCBPDMR, &Val))) {
+        Val = RCBPCIDEVMAPLO_SET (Val, RC->DevMapLo & 0x7);
+        Val = RCBPCIDEVMAPHI_SET (Val, RC->DevMapHi & 0x7);
+        MailboxMsgRegisterWrite (RC->Socket, RC->HBAddr + HBRCBPDMR, Val);
+      }
+    }
+  }
+}
+
+VOID
+PcieBoardGetSpeed (
+  IN AC01_RC *RC
+  )
+{
+  UINT8 MaxGenTbl[MAX_PCIE_A] = { SPEED_GEN4, SPEED_GEN4, SPEED_GEN4, SPEED_GEN4 };         // Bifurcation 0: RCA x16 / RCB x8
+  UINT8 MaxGenTblX8X4X4[MAX_PCIE_A] = { SPEED_GEN4, SPEED_GEN4, SPEED_GEN1, SPEED_GEN1 };   // Bifurcation 2: x8 x4 x4 (PCIE_ERRATA_SPEED1)
+  UINT8 MaxGenTblX4X4X4X4[MAX_PCIE_A] = { SPEED_GEN1, SPEED_GEN1, SPEED_GEN1, SPEED_GEN1 }; // Bifurcation 3: x4 x4 x4 x4 (PCIE_ERRATA_SPEED1)
+  UINT8 MaxGenTblRCB[MAX_PCIE_A] = { SPEED_GEN1, SPEED_GEN1, SPEED_GEN1, SPEED_GEN1 };      // RCB PCIE_ERRATA_SPEED1
+  INTN  RPIdx;
+  UINT8 *MaxGen;
+
+  ASSERT (MAX_PCIE_A == 4);
+  ASSERT (MAX_PCIE == 8);
+
+  //
+  // Due to hardware errata, for A0/A1*
+  //  RCB is limited to Gen1 speed.
+  //  RCA x16, x8 port supports up to Gen4,
+  //  RCA x4 port only supports Gen1.
+  //
+  MaxGen = MaxGenTbl;
+  if (RC->Type == RCB) {
+    if (RC->Flags & PCIE_ERRATA_SPEED1) {
+      MaxGen = MaxGenTblRCB;
+    }
+  } else {
+    switch (RC->DevMapLo) {
+    case 2: /* x8 x4 x4 */
+      if (RC->Flags & PCIE_ERRATA_SPEED1) {
+        MaxGen = MaxGenTblX8X4X4;
+      }
+      break;
+
+    case 3: /* X4 x4 x4 x4 */
+      if (RC->Flags & PCIE_ERRATA_SPEED1) {
+        MaxGen = MaxGenTblX4X4X4X4;
+      }
+      break;
+
+    case 1: /* x8 x8 */
+    default:
+      break;
+    }
+  }
+
+  for (RPIdx = 0; RPIdx < MAX_PCIE_A; RPIdx++) {
+    RC->Pcie[RPIdx].MaxGen = RC->Pcie[RPIdx].Active ? MaxGen[RPIdx] : 0;
+  }
+
+  if (RC->Type == RCB) {
+    for (RPIdx = MAX_PCIE_A; RPIdx < MAX_PCIE; RPIdx++) {
+      RC->Pcie[RPIdx].MaxGen = RC->Pcie[RPIdx].Active ?
+                               MaxGen[RPIdx - MAX_PCIE_A] : 0;
+    }
+  }
+}
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.c b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.c
new file mode 100644
index 000000000000..309cc8857b8c
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.c
@@ -0,0 +1,1120 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Guid/PlatformInfoHobGuid.h>
+#include <Library/AmpereCpuLib.h>
+#include <Library/HobLib.h>
+#include <Library/NVParamLib.h>
+#include <Library/PcieBoardLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <NVParamDef.h>
+#include <Pcie.h>
+#include <PlatformInfoHob.h>
+
+#include "PcieBoardScreen.h"
+
+#ifndef BIT
+#define BIT(nr) (1 << (nr))
+#endif
+
+#define MAX_STRING_SIZE     32
+
+CHAR16   VariableName[]     = PCIE_VARSTORE_NAME;
+EFI_GUID gPcieFormSetGuid   = PCIE_FORM_SET_GUID;
+
+EFI_HANDLE               DriverHandle = NULL;
+PCIE_SCREEN_PRIVATE_DATA *mPrivateData = NULL;
+
+AC01_RC RCList[MAX_AC01_PCIE_ROOT_COMPLEX];
+
+HII_VENDOR_DEVICE_PATH mHiiVendorDevicePath = {
+  {
+    {
+      HARDWARE_DEVICE_PATH,
+      HW_VENDOR_DP,
+      {
+        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
+        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
+      }
+    },
+    PCIE_FORM_SET_GUID
+  },
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    {
+      (UINT8)(END_DEVICE_PATH_LENGTH),
+      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
+    }
+  }
+};
+
+/**
+  This function allows a caller to extract the current configuration for one
+  or more named elements from the target driver.
+  @param  This                   Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param  Request                A null-terminated Unicode string in
+                                 <ConfigRequest> format.
+  @param  Progress               On return, points to a character in the Request
+                                 string. Points to the string's null terminator if
+                                 request was successful. Points to the most recent
+                                 '&' before the first failing name/value pair (or
+                                 the beginning of the string if the failure is in
+                                 the first name/value pair) if the request was not
+                                 successful.
+  @param  Results                A null-terminated Unicode string in
+                                 <ConfigAltResp> format which has all values filled
+                                 in for the names in the Request string. String to
+                                 be allocated by the called function.
+  @retval EFI_SUCCESS            The Results is filled with the requested values.
+  @retval EFI_OUT_OF_RESOURCES   Not enough memory to store the results.
+  @retval EFI_INVALID_PARAMETER  Request is illegal syntax, or unknown name.
+  @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this
+                                 driver.
+**/
+EFI_STATUS
+EFIAPI
+ExtractConfig (
+  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
+  IN CONST EFI_STRING                     Request,
+  OUT      EFI_STRING                     *Progress,
+  OUT      EFI_STRING                     *Results
+  )
+{
+  EFI_STATUS                      Status;
+  UINTN                           BufferSize;
+  PCIE_SCREEN_PRIVATE_DATA        *PrivateData;
+  EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+  EFI_STRING                      ConfigRequest;
+  EFI_STRING                      ConfigRequestHdr;
+  UINTN                           Size;
+  CHAR16                          *StrPointer;
+  BOOLEAN                         AllocatedRequest;
+  PCIE_VARSTORE_DATA              *VarStoreConfig;
+
+  if (Progress == NULL || Results == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Initialize the local variables.
+  //
+  ConfigRequestHdr  = NULL;
+  ConfigRequest     = NULL;
+  Size              = 0;
+  *Progress         = Request;
+  AllocatedRequest  = FALSE;
+
+  PrivateData = PCIE_SCREEN_PRIVATE_FROM_THIS (This);
+  HiiConfigRouting = PrivateData->HiiConfigRouting;
+  VarStoreConfig = &PrivateData->VarStoreConfig;
+  ASSERT (VarStoreConfig != NULL);
+
+  //
+  // Get Buffer Storage data from EFI variable.
+  // Try to get the current setting from variable.
+  //
+  BufferSize = sizeof (PCIE_VARSTORE_DATA);
+  Status = gRT->GetVariable (
+                  VariableName,
+                  &gPcieFormSetGuid,
+                  NULL,
+                  &BufferSize,
+                  VarStoreConfig
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_NOT_FOUND;
+  }
+
+  if (Request == NULL) {
+    //
+    // Request is set to NULL, construct full request string.
+    //
+
+    //
+    // Allocate and fill a buffer large enough to hold the <ConfigHdr> template
+    // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a
+    // Null-terminator
+    //
+    ConfigRequestHdr = HiiConstructConfigHdr (
+                         &gPcieFormSetGuid,
+                         VariableName,
+                         PrivateData->DriverHandle
+                         );
+    if (ConfigRequestHdr == NULL) {
+      return EFI_OUT_OF_RESOURCES;
+    }
+    Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);
+    ConfigRequest = AllocateZeroPool (Size);
+    ASSERT (ConfigRequest != NULL);
+    AllocatedRequest = TRUE;
+    UnicodeSPrint (
+      ConfigRequest,
+      Size,
+      L"%s&OFFSET=0&WIDTH=%016LX",
+      ConfigRequestHdr,
+      (UINT64)BufferSize
+      );
+    FreePool (ConfigRequestHdr);
+    ConfigRequestHdr = NULL;
+  } else {
+    //
+    // Check routing data in <ConfigHdr>.
+    // Note: if only one Storage is used, then this checking could be skipped.
+    //
+    if (!HiiIsConfigHdrMatch (Request, &gPcieFormSetGuid, NULL)) {
+      return EFI_NOT_FOUND;
+    }
+
+    //
+    // Set Request to the unified request string.
+    //
+    ConfigRequest = Request;
+
+    //
+    // Check whether Request includes Request Element.
+    //
+    if (StrStr (Request, L"OFFSET") == NULL) {
+      //
+      // Check Request Element does exist in Request String
+      //
+      StrPointer = StrStr (Request, L"PATH");
+      if (StrPointer == NULL) {
+        return EFI_INVALID_PARAMETER;
+      }
+      if (StrStr (StrPointer, L"&") == NULL) {
+        Size = (StrLen (Request) + 32 + 1) * sizeof (CHAR16);
+        ConfigRequest    = AllocateZeroPool (Size);
+        ASSERT (ConfigRequest != NULL);
+        AllocatedRequest = TRUE;
+        UnicodeSPrint (
+          ConfigRequest,
+          Size,
+          L"%s&OFFSET=0&WIDTH=%016LX",
+          Request,
+          (UINT64)BufferSize
+          );
+      }
+    }
+  }
+
+  //
+  // Check if requesting Name/Value storage
+  //
+  if (StrStr (ConfigRequest, L"OFFSET") == NULL) {
+    //
+    // Don't have any Name/Value storage names
+    //
+    Status = EFI_SUCCESS;
+  } else {
+    //
+    // Convert buffer data to <ConfigResp> by helper function BlockToConfig()
+    //
+    Status = HiiConfigRouting->BlockToConfig (
+                                 HiiConfigRouting,
+                                 ConfigRequest,
+                                 (UINT8 *)VarStoreConfig,
+                                 BufferSize,
+                                 Results,
+                                 Progress
+                                 );
+  }
+
+  //
+  // Free the allocated config request string.
+  //
+  if (AllocatedRequest) {
+    FreePool (ConfigRequest);
+  }
+
+  if (ConfigRequestHdr != NULL) {
+    FreePool (ConfigRequestHdr);
+  }
+  //
+  // Set Progress string to the original request string.
+  //
+  if (Request == NULL) {
+    *Progress = NULL;
+  } else if (StrStr (Request, L"OFFSET") == NULL) {
+    *Progress = Request + StrLen (Request);
+  }
+
+  return Status;
+}
+
+/**
+  This function processes the results of changes in configuration.
+  @param  This                   Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param  Configuration          A null-terminated Unicode string in <ConfigResp>
+                                 format.
+  @param  Progress               A pointer to a string filled in with the offset of
+                                 the most recent '&' before the first failing
+                                 name/value pair (or the beginning of the string if
+                                 the failure is in the first name/value pair) or
+                                 the terminating NULL if all was successful.
+  @retval EFI_SUCCESS            The Results is processed successfully.
+  @retval EFI_INVALID_PARAMETER  Configuration is NULL.
+  @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this
+                                 driver.
+**/
+EFI_STATUS
+EFIAPI
+RouteConfig (
+  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
+  IN CONST EFI_STRING                     Configuration,
+  OUT      EFI_STRING                     *Progress
+  )
+{
+  EFI_STATUS                      Status;
+  UINTN                           BufferSize;
+  PCIE_SCREEN_PRIVATE_DATA        *PrivateData;
+  EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+  PCIE_VARSTORE_DATA              *VarStoreConfig;
+
+  if (Configuration == NULL || Progress == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  PrivateData = PCIE_SCREEN_PRIVATE_FROM_THIS (This);
+  HiiConfigRouting = PrivateData->HiiConfigRouting;
+  *Progress = Configuration;
+  VarStoreConfig = &PrivateData->VarStoreConfig;
+  ASSERT (VarStoreConfig != NULL);
+
+  //
+  // Check routing data in <ConfigHdr>.
+  // Note: if only one Storage is used, then this checking could be skipped.
+  //
+  if (!HiiIsConfigHdrMatch (Configuration, &gPcieFormSetGuid, NULL)) {
+    return EFI_NOT_FOUND;
+  }
+
+  //
+  // Get Buffer Storage data from EFI variable
+  //
+  BufferSize = sizeof (PCIE_VARSTORE_DATA);
+  Status = gRT->GetVariable (
+                  VariableName,
+                  &gPcieFormSetGuid,
+                  NULL,
+                  &BufferSize,
+                  VarStoreConfig
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Check if configuring Name/Value storage
+  //
+  if (StrStr (Configuration, L"OFFSET") == NULL) {
+    //
+    // Don't have any Name/Value storage names
+    //
+    return EFI_SUCCESS;
+  }
+
+  //
+  // Convert <ConfigResp> to buffer data by helper function ConfigToBlock()
+  //
+  BufferSize = sizeof (PCIE_VARSTORE_DATA);
+  Status = HiiConfigRouting->ConfigToBlock (
+                               HiiConfigRouting,
+                               Configuration,
+                               (UINT8 *)VarStoreConfig,
+                               &BufferSize,
+                               Progress
+                               );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Store Buffer Storage back to variable
+  //
+  Status = gRT->SetVariable (
+                  VariableName,
+                  &gPcieFormSetGuid,
+                  EFI_VARIABLE_NON_VOLATILE |
+                  EFI_VARIABLE_BOOTSERVICE_ACCESS |
+                  EFI_VARIABLE_RUNTIME_ACCESS,
+                  sizeof (PCIE_VARSTORE_DATA),
+                  VarStoreConfig
+                  );
+
+  return Status;
+}
+
+/**
+  This function processes the results of changes in configuration.
+  @param  This                   Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
+  @param  Action                 Specifies the type of action taken by the browser.
+  @param  QuestionId             A unique value which is sent to the original
+                                 exporting driver so that it can identify the type
+                                 of data to expect.
+  @param  Type                   The type of value for the question.
+  @param  Value                  A pointer to the data being sent to the original
+                                 exporting driver.
+  @param  ActionRequest          On return, points to the action requested by the
+                                 callback function.
+  @retval EFI_SUCCESS            The callback successfully handled the action.
+  @retval EFI_OUT_OF_RESOURCES   Not enough storage is available to hold the
+                                 variable and its data.
+  @retval EFI_DEVICE_ERROR       The variable could not be saved.
+  @retval EFI_UNSUPPORTED        The specified Action is not supported by the
+                                 callback.
+**/
+EFI_STATUS
+EFIAPI
+DriverCallback (
+  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
+  IN       EFI_BROWSER_ACTION             Action,
+  IN       EFI_QUESTION_ID                QuestionId,
+  IN       UINT8                          Type,
+  IN       EFI_IFR_TYPE_VALUE             *Value,
+  OUT      EFI_BROWSER_ACTION_REQUEST     *ActionRequest
+  )
+{
+  PCIE_VARSTORE_DATA       *VarStoreConfig;
+  PCIE_SCREEN_PRIVATE_DATA *PrivateData;
+  EFI_STATUS               Status;
+
+  if (((Value == NULL) &&
+       (Action != EFI_BROWSER_ACTION_FORM_OPEN) &&
+       (Action != EFI_BROWSER_ACTION_FORM_CLOSE)) ||
+      (ActionRequest == NULL))
+  {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  PrivateData = PCIE_SCREEN_PRIVATE_FROM_THIS (This);
+  VarStoreConfig = &PrivateData->VarStoreConfig;
+  ASSERT (VarStoreConfig != NULL);
+
+  Status = EFI_SUCCESS;
+
+  switch (Action) {
+  case EFI_BROWSER_ACTION_FORM_OPEN:
+    break;
+
+  case EFI_BROWSER_ACTION_FORM_CLOSE:
+    break;
+
+  case EFI_BROWSER_ACTION_DEFAULT_STANDARD:
+  case EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING:
+    if (QuestionId == 0x9000) {
+      /* SMMU PMU */
+      Value->u32 = 0; /* default disable */
+      break;
+    }
+
+    switch ((QuestionId - 0x8002) % MAX_EDITABLE_ELEMENTS) {
+    case 0:
+      Value->u8 = PcieRCActiveDefaultSetting ((QuestionId - 0x8002) / MAX_EDITABLE_ELEMENTS, PrivateData);
+      break;
+
+    case 1:
+      Value->u8 = PcieRCDevMapLoDefaultSetting ((QuestionId - 0x8002) / MAX_EDITABLE_ELEMENTS, PrivateData);
+      break;
+
+    case 2:
+      Value->u8 = PcieRCDevMapHiDefaultSetting ((QuestionId - 0x8002) / MAX_EDITABLE_ELEMENTS, PrivateData);
+      break;
+    }
+    break;
+
+  case EFI_BROWSER_ACTION_RETRIEVE:
+  case EFI_BROWSER_ACTION_CHANGING:
+  case EFI_BROWSER_ACTION_SUBMITTED:
+    break;
+
+  default:
+    Status = EFI_UNSUPPORTED;
+    break;
+  }
+
+  return Status;
+}
+
+EFI_STATUS
+PcieScreenUnload (
+  IN EFI_HANDLE ImageHandle
+  )
+{
+  ASSERT (mPrivateData != NULL);
+
+  if (DriverHandle != NULL) {
+    gBS->UninstallMultipleProtocolInterfaces (
+           DriverHandle,
+           &gEfiDevicePathProtocolGuid,
+           &mHiiVendorDevicePath,
+           &gEfiHiiConfigAccessProtocolGuid,
+           &mPrivateData->ConfigAccess,
+           NULL
+           );
+    DriverHandle = NULL;
+  }
+
+  if (mPrivateData->HiiHandle != NULL) {
+    HiiRemovePackages (mPrivateData->HiiHandle);
+  }
+
+  FreePool (mPrivateData);
+  mPrivateData = NULL;
+
+  return EFI_SUCCESS;
+}
+
+/**
+  This function return default settings for Dev Map LO.
+  @param  RC                     Root Complex ID.
+  @param  PrivateData            Private data.
+
+  @retval Default dev settings.
+**/
+UINT8
+PcieRCDevMapLoDefaultSetting (
+  IN UINTN                    RCIndex,
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  )
+{
+  AC01_RC *RC = &RCList[RCIndex];
+
+  return RC->DefaultDevMapLo;
+}
+
+/**
+  This function return default settings for Dev Map HI.
+  @param  RC                     Root Complex ID.
+  @param  PrivateData            Private data.
+
+  @retval Default dev settings.
+**/
+UINT8
+PcieRCDevMapHiDefaultSetting (
+  IN UINTN                    RCIndex,
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  )
+{
+  AC01_RC *RC = &RCList[RCIndex];
+
+  return RC->DefaultDevMapHi;
+}
+
+BOOLEAN
+PcieRCActiveDefaultSetting (
+  IN UINTN                    RCIndex,
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  )
+{
+  PLATFORM_INFO_HOB  *PlatformHob;
+  VOID               *Hob;
+  UINT32             Efuse;
+
+  // FIXME: Disable Root Complex 6 (USB and VGA) as default
+  if (RCIndex == 6) {
+    return FALSE;
+  }
+
+  Hob = GetFirstGuidHob (&gPlatformHobGuid);
+  if (Hob != NULL) {
+    PlatformHob = (PLATFORM_INFO_HOB *)GET_GUID_HOB_DATA (Hob);
+    Efuse = PlatformHob->RcDisableMask[0] | (PlatformHob->RcDisableMask[1] << RCS_PER_SOCKET);
+    return (!(Efuse & BIT (RCIndex))) ? TRUE : FALSE;
+  }
+
+  return FALSE;
+}
+
+/**
+  This function sets up the first elements of the form.
+  @param  RC                     Root Complex ID.
+  @param  PrivateData            Private data.
+  @retval EFI_SUCCESS            The form is set up successfully.
+**/
+EFI_STATUS
+PcieRCScreenSetup (
+  IN UINTN                    RCIndex,
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  )
+{
+  VOID               *StartOpCodeHandle;
+  EFI_IFR_GUID_LABEL *StartLabel;
+  VOID               *EndOpCodeHandle;
+  EFI_IFR_GUID_LABEL *EndLabel;
+  VOID               *OptionsOpCodeHandle;
+  VOID               *OptionsHiOpCodeHandle;
+  CHAR16             Str[MAX_STRING_SIZE];
+  UINT16             DisabledStatusVarOffset;
+  UINT16             BifurLoVarOffset;
+  UINT16             BifurHiVarOffset;
+  UINT8              QuestionFlags, QuestionFlagsSubItem;
+  AC01_RC            *RC;
+
+  RC = &RCList[RCIndex];
+
+  // Initialize the container for dynamic opcodes
+  StartOpCodeHandle = HiiAllocateOpCodeHandle ();
+  ASSERT (StartOpCodeHandle != NULL);
+  EndOpCodeHandle = HiiAllocateOpCodeHandle ();
+  ASSERT (EndOpCodeHandle != NULL);
+
+  // Create Hii Extend Label OpCode as the start opcode
+  StartLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                       StartOpCodeHandle,
+                                       &gEfiIfrTianoGuid,
+                                       NULL,
+                                       sizeof (EFI_IFR_GUID_LABEL)
+                                       );
+  StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+  StartLabel->Number       = LABEL_RC0_UPDATE + 2 * RCIndex;
+
+  // Create Hii Extend Label OpCode as the end opcode
+  EndLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                     EndOpCodeHandle,
+                                     &gEfiIfrTianoGuid,
+                                     NULL,
+                                     sizeof (EFI_IFR_GUID_LABEL)
+                                     );
+  EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+  EndLabel->Number       = LABEL_RC0_END + 2 * RCIndex;
+
+  // Create textbox to tell socket
+  HiiCreateTextOpCode (
+    StartOpCodeHandle,
+    STRING_TOKEN (STR_PCIE_SOCKET),
+    STRING_TOKEN (STR_PCIE_SOCKET_HELP),
+    HiiSetString (
+      PrivateData->HiiHandle,
+      0,
+      (RC->Socket) ? L"1" : L"0",
+      NULL
+      )
+    );
+
+  // Create textbox to tell Root Complex type
+  HiiCreateTextOpCode (
+    StartOpCodeHandle,
+    STRING_TOKEN (STR_PCIE_RC_TYPE),
+    STRING_TOKEN (STR_PCIE_RC_TYPE_HELP),
+    HiiSetString (
+      PrivateData->HiiHandle,
+      0,
+      (RC->Type == RCA) ? L"Root Complex Type-A" : L"Root Complex Type-B",
+      NULL
+      )
+    );
+
+  UnicodeSPrint (Str, sizeof (Str), L"Root Complex #%2d", RCIndex);
+
+  DisabledStatusVarOffset = (UINT16)PCIE_RC0_STATUS_OFFSET +
+                            sizeof (BOOLEAN) * RCIndex;
+  BifurLoVarOffset = (UINT16)PCIE_RC0_BIFUR_LO_OFFSET +
+                     sizeof (UINT8) * RCIndex;
+  BifurHiVarOffset = (UINT16)PCIE_RC0_BIFUR_HI_OFFSET +
+                     sizeof (UINT8) * RCIndex;
+
+  QuestionFlags = EFI_IFR_FLAG_RESET_REQUIRED | EFI_IFR_FLAG_CALLBACK;
+  if (IsEmptyRC (RC)
+      || (GetNumberOfActiveSockets () == 1 && RC->Socket == 1))
+  {
+    //
+    // Do not allow changing if none of Root Port underneath enabled
+    // or slave Root Complex on 1P system.
+    //
+    QuestionFlags |= EFI_IFR_FLAG_READ_ONLY;
+  }
+  // Create the RC disabled checkbox
+  HiiCreateCheckBoxOpCode (
+    StartOpCodeHandle,                        // Container for dynamic created opcodes
+    0x8002 + MAX_EDITABLE_ELEMENTS * RCIndex, // QuestionId (or "key")
+    PCIE_VARSTORE_ID,                         // VarStoreId
+    DisabledStatusVarOffset,                  // VarOffset in Buffer Storage
+    HiiSetString (
+      PrivateData->HiiHandle,
+      0,
+      Str,
+      NULL
+      ),                                       // Prompt
+    STRING_TOKEN (STR_PCIE_RC_STATUS_HELP),    // Help
+    QuestionFlags,                             // QuestionFlags
+    0,                                         // CheckBoxFlags
+    NULL                                       // DefaultsOpCodeHandle
+    );
+
+  if (RC->Type == RCA) {
+    // Create Option OpCode to display bifurcation for RCA
+    OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
+    ASSERT (OptionsOpCodeHandle != NULL);
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE0),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      0 // Devmap=0
+      );
+
+
+    if (RC->DefaultDevMapLo != 0) {
+      QuestionFlags |= EFI_IFR_FLAG_READ_ONLY;
+    }
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE1),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      1 // Devmap=1
+      );
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE2),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      2 // Devmap=2
+      );
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE3),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      3 // Devmap=3
+      );
+
+    HiiCreateOneOfOpCode (
+      StartOpCodeHandle,                        // Container for dynamic created opcodes
+      0x8003 + MAX_EDITABLE_ELEMENTS * RCIndex, // Question ID (or call it "key")
+      PCIE_VARSTORE_ID,                         // VarStore ID
+      BifurLoVarOffset,                         // Offset in Buffer Storage
+      STRING_TOKEN (STR_PCIE_RCA_BIFUR),        // Question prompt text
+      STRING_TOKEN (STR_PCIE_RCA_BIFUR_HELP),   // Question help text
+      QuestionFlags,                            // Question flag
+      EFI_IFR_NUMERIC_SIZE_1,                   // Data type of Question Value
+      OptionsOpCodeHandle,                      // Option Opcode list
+      NULL                                      // Default Opcode is NULl
+      );
+  } else {
+    // Create Option OpCode to display bifurcation for RCB-Lo
+    OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
+    ASSERT (OptionsOpCodeHandle != NULL);
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE4),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      0 // Devmap=0
+      );
+
+    QuestionFlagsSubItem = QuestionFlags;
+    if (RC->DefaultDevMapLo != 0) {
+      QuestionFlagsSubItem |= EFI_IFR_FLAG_READ_ONLY;
+    }
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE5),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      1 // Devmap=1
+      );
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE6),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      2 // Devmap=2
+      );
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE7),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      3 // Devmap=3
+      );
+
+    HiiCreateOneOfOpCode (
+      StartOpCodeHandle,                         // Container for dynamic created opcodes
+      0x8003 + MAX_EDITABLE_ELEMENTS * RCIndex,  // Question ID (or call it "key")
+      PCIE_VARSTORE_ID,                          // VarStore ID
+      BifurLoVarOffset,                          // Offset in Buffer Storage
+      STRING_TOKEN (STR_PCIE_RCB_LO_BIFUR),      // Question prompt text
+      STRING_TOKEN (STR_PCIE_RCB_LO_BIFUR_HELP), // Question help text
+      QuestionFlagsSubItem,                      // Question flag
+      EFI_IFR_NUMERIC_SIZE_1,                    // Data type of Question Value
+      OptionsOpCodeHandle,                       // Option Opcode list
+      NULL                                       // Default Opcode is NULl
+      );
+
+    // Create Option OpCode to display bifurcation for RCB-Hi
+    OptionsHiOpCodeHandle = HiiAllocateOpCodeHandle ();
+    ASSERT (OptionsHiOpCodeHandle != NULL);
+
+    QuestionFlagsSubItem = QuestionFlags;
+    if (RC->DefaultDevMapHi != 0) {
+      QuestionFlagsSubItem |= EFI_IFR_FLAG_READ_ONLY;
+    }
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsHiOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE4),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      0 // Devmap=0
+      );
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsHiOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE5),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      1 // Devmap=1
+      );
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsHiOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE6),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      2 // Devmap=2
+      );
+
+    HiiCreateOneOfOptionOpCode (
+      OptionsHiOpCodeHandle,
+      STRING_TOKEN (STR_PCIE_BIFUR_SELECT_VALUE7),
+      0,
+      EFI_IFR_NUMERIC_SIZE_1,
+      3 // Devmap=3
+      );
+
+    HiiCreateOneOfOpCode (
+      StartOpCodeHandle,                         // Container for dynamic created opcodes
+      0x8004 + MAX_EDITABLE_ELEMENTS * RCIndex,  // Question ID (or call it "key")
+      PCIE_VARSTORE_ID,                          // VarStore ID
+      BifurHiVarOffset,                          // Offset in Buffer Storage
+      STRING_TOKEN (STR_PCIE_RCB_HI_BIFUR),      // Question prompt text
+      STRING_TOKEN (STR_PCIE_RCB_HI_BIFUR_HELP), // Question help text
+      QuestionFlagsSubItem,                      // Question flag
+      EFI_IFR_NUMERIC_SIZE_1,                    // Data type of Question Value
+      OptionsHiOpCodeHandle,                     // Option Opcode list
+      NULL                                       // Default Opcode is NULl
+      );
+  }
+
+  HiiUpdateForm (
+    PrivateData->HiiHandle,     // HII handle
+    &gPcieFormSetGuid,          // Formset GUID
+    PCIE_RC0_FORM_ID + RCIndex, // Form ID
+    StartOpCodeHandle,          // Label for where to insert opcodes
+    EndOpCodeHandle             // Insert data
+    );
+
+  HiiFreeOpCodeHandle (StartOpCodeHandle);
+  HiiFreeOpCodeHandle (EndOpCodeHandle);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  This function sets up the first elements of the form.
+  @param  PrivateData            Private data.
+  @retval EFI_SUCCESS            The form is set up successfully.
+**/
+EFI_STATUS
+PcieMainScreenSetup (
+  IN PCIE_SCREEN_PRIVATE_DATA *PrivateData
+  )
+{
+  VOID                 *StartOpCodeHandle;
+  EFI_IFR_GUID_LABEL   *StartLabel;
+  VOID                 *EndOpCodeHandle;
+  EFI_IFR_GUID_LABEL   *EndLabel;
+  CHAR16               Str[MAX_STRING_SIZE];
+  UINTN                RC;
+  PCIE_SETUP_GOTO_DATA *GotoItem = NULL;
+  EFI_QUESTION_ID      GotoId;
+
+  // Initialize the container for dynamic opcodes
+  StartOpCodeHandle = HiiAllocateOpCodeHandle ();
+  ASSERT (StartOpCodeHandle != NULL);
+  EndOpCodeHandle = HiiAllocateOpCodeHandle ();
+  ASSERT (EndOpCodeHandle != NULL);
+
+  // Create Hii Extend Label OpCode as the start opcode
+  StartLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                       StartOpCodeHandle,
+                                       &gEfiIfrTianoGuid,
+                                       NULL,
+                                       sizeof (EFI_IFR_GUID_LABEL)
+                                       );
+  StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+  StartLabel->Number       = LABEL_UPDATE;
+
+  // Create Hii Extend Label OpCode as the end opcode
+  EndLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                     EndOpCodeHandle,
+                                     &gEfiIfrTianoGuid,
+                                     NULL,
+                                     sizeof (EFI_IFR_GUID_LABEL)
+                                     );
+  EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+  EndLabel->Number       = LABEL_END;
+
+  HiiCreateCheckBoxOpCode (
+    StartOpCodeHandle,                       // Container for dynamic created opcodes
+    0x9000,                                  // Question ID
+    PCIE_VARSTORE_ID,                        // VarStore ID
+    (UINT16)PCIE_SMMU_PMU_OFFSET,            // Offset in Buffer Storage
+    STRING_TOKEN (STR_PCIE_SMMU_PMU_PROMPT), // Question prompt text
+    STRING_TOKEN (STR_PCIE_SMMU_PMU_HELP),   // Question help text
+    EFI_IFR_FLAG_CALLBACK | EFI_IFR_FLAG_RESET_REQUIRED,
+    0,
+    NULL
+    );
+
+  //
+  // Create the a seperated line
+  //
+  HiiCreateTextOpCode (
+    StartOpCodeHandle,
+    STRING_TOKEN (STR_PCIE_FORM_SEPERATE_LINE),
+    STRING_TOKEN (STR_PCIE_FORM_SEPERATE_LINE),
+    STRING_TOKEN (STR_PCIE_FORM_SEPERATE_LINE)
+    );
+
+  // Create Goto form for each RC
+  for (RC = 0; RC < MAX_AC01_PCIE_ROOT_COMPLEX; RC++) {
+
+    GotoItem = AllocateZeroPool (sizeof (PCIE_SETUP_GOTO_DATA));
+    if (GotoItem == NULL) {
+      return EFI_OUT_OF_RESOURCES;
+    }
+    GotoItem->PciDevIdx = RC;
+
+    GotoId = PCIE_GOTO_ID_BASE + (UINT16)RC;
+
+    // Update HII string
+    UnicodeSPrint (Str, sizeof (Str), L"Root Complex #%2d", RC);
+    GotoItem->GotoStringId = HiiSetString (
+                               PrivateData->HiiHandle,
+                               0,
+                               Str,
+                               NULL
+                               );
+    GotoItem->GotoHelpStringId = STRING_TOKEN (STR_PCIE_GOTO_HELP);
+    GotoItem->ShowItem = TRUE;
+
+    // Add goto control
+    HiiCreateGotoOpCode (
+      StartOpCodeHandle,
+      PCIE_RC0_FORM_ID + RC,
+      GotoItem->GotoStringId,
+      GotoItem->GotoHelpStringId,
+      EFI_IFR_FLAG_CALLBACK,
+      GotoId
+      );
+  }
+
+  HiiUpdateForm (
+    PrivateData->HiiHandle,  // HII handle
+    &gPcieFormSetGuid,       // Formset GUID
+    PCIE_FORM_ID,            // Form ID
+    StartOpCodeHandle,       // Label for where to insert opcodes
+    EndOpCodeHandle          // Insert data
+    );
+
+  HiiFreeOpCodeHandle (StartOpCodeHandle);
+  HiiFreeOpCodeHandle (EndOpCodeHandle);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+PcieBoardScreenInitialize (
+  IN EFI_HANDLE       ImageHandle,
+  IN EFI_SYSTEM_TABLE *SystemTable,
+  IN AC01_RC          *NewRCList
+  )
+{
+  EFI_STATUS                          Status;
+  EFI_HII_HANDLE                      HiiHandle;
+  EFI_HII_DATABASE_PROTOCOL           *HiiDatabase;
+  EFI_HII_STRING_PROTOCOL             *HiiString;
+  EFI_HII_CONFIG_ROUTING_PROTOCOL     *HiiConfigRouting;
+  EFI_CONFIG_KEYWORD_HANDLER_PROTOCOL *HiiKeywordHandler;
+  UINTN                               BufferSize;
+  BOOLEAN                             IsUpdated;
+  PCIE_VARSTORE_DATA                  *VarStoreConfig;
+  UINT8                               RCIndex;
+  AC01_RC                             *RC;
+
+  //
+  // Initialize driver private data
+  //
+  mPrivateData = AllocateZeroPool (sizeof (PCIE_SCREEN_PRIVATE_DATA));
+  if (mPrivateData == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  mPrivateData->Signature = PCIE_SCREEN_PRIVATE_DATA_SIGNATURE;
+
+  mPrivateData->ConfigAccess.ExtractConfig = ExtractConfig;
+  mPrivateData->ConfigAccess.RouteConfig = RouteConfig;
+  mPrivateData->ConfigAccess.Callback = DriverCallback;
+
+  //
+  // Locate Hii Database protocol
+  //
+  Status = gBS->LocateProtocol (
+                  &gEfiHiiDatabaseProtocolGuid,
+                  NULL,
+                  (VOID **)&HiiDatabase
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  mPrivateData->HiiDatabase = HiiDatabase;
+
+  //
+  // Locate HiiString protocol
+  //
+  Status = gBS->LocateProtocol (
+                  &gEfiHiiStringProtocolGuid,
+                  NULL,
+                  (VOID **)&HiiString
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  mPrivateData->HiiString = HiiString;
+
+  //
+  // Locate ConfigRouting protocol
+  //
+  Status = gBS->LocateProtocol (
+                  &gEfiHiiConfigRoutingProtocolGuid,
+                  NULL,
+                  (VOID **)&HiiConfigRouting
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  mPrivateData->HiiConfigRouting = HiiConfigRouting;
+
+  //
+  // Locate keyword handler protocol
+  //
+  Status = gBS->LocateProtocol (
+                  &gEfiConfigKeywordHandlerProtocolGuid,
+                  NULL,
+                  (VOID **)&HiiKeywordHandler
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  mPrivateData->HiiKeywordHandler = HiiKeywordHandler;
+
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &DriverHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  &mHiiVendorDevicePath,
+                  &gEfiHiiConfigAccessProtocolGuid,
+                  &mPrivateData->ConfigAccess,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  mPrivateData->DriverHandle = DriverHandle;
+
+  //
+  // Publish our HII data
+  //
+  HiiHandle = HiiAddPackages (
+                &gPcieFormSetGuid,
+                DriverHandle,
+                PcieBoardLibStrings,
+                VfrBin,
+                NULL
+                );
+  if (HiiHandle == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  mPrivateData->HiiHandle = HiiHandle;
+
+  // Make a shadow copy all Root Complexes' properties
+  CopyMem ((VOID *)RCList, (VOID *)NewRCList, sizeof (RCList));
+
+  //
+  // Initialize efi varstore configuration data
+  //
+  VarStoreConfig = &mPrivateData->VarStoreConfig;
+  ZeroMem (VarStoreConfig, sizeof (PCIE_VARSTORE_DATA));
+
+  // Get Buffer Storage data from EFI variable
+  BufferSize = sizeof (PCIE_VARSTORE_DATA);
+  Status = gRT->GetVariable (
+                  VariableName,
+                  &gPcieFormSetGuid,
+                  NULL,
+                  &BufferSize,
+                  VarStoreConfig
+                  );
+
+  IsUpdated = FALSE;
+
+  if (EFI_ERROR (Status)) {
+    VarStoreConfig->SmmuPmu = 0; /* Disable by default */
+    IsUpdated = TRUE;
+  }
+  // Update board settings to menu
+  for (RCIndex = 0; RCIndex < MAX_AC01_PCIE_ROOT_COMPLEX; RCIndex++) {
+    RC = &RCList[RCIndex];
+
+    if (EFI_ERROR (Status)) {
+      VarStoreConfig->RCBifurLo[RCIndex] = RC->DevMapLo;
+      VarStoreConfig->RCBifurHi[RCIndex] = RC->DevMapHi;
+      VarStoreConfig->RCStatus[RCIndex] = RC->Active;
+      IsUpdated = TRUE;
+    }
+    // FIXME: Disable Root Complex 6 (USB and VGA) as default
+    if (EFI_ERROR (Status) && RCIndex == 6) {
+      VarStoreConfig->RCStatus[RCIndex] = 0;
+    }
+  }
+
+  if (IsUpdated) {
+    // Update Buffer Storage
+    Status = gRT->SetVariable (
+                    VariableName,
+                    &gPcieFormSetGuid,
+                    EFI_VARIABLE_NON_VOLATILE |
+                    EFI_VARIABLE_BOOTSERVICE_ACCESS |
+                    EFI_VARIABLE_RUNTIME_ACCESS,
+                    sizeof (PCIE_VARSTORE_DATA),
+                    VarStoreConfig
+                    );
+    if (EFI_ERROR (Status)) {
+      return Status;
+    }
+  }
+  Status = PcieMainScreenSetup (mPrivateData);
+  ASSERT_EFI_ERROR (Status);
+
+  for (RCIndex = 0; RCIndex < MAX_AC01_PCIE_ROOT_COMPLEX; RCIndex++) {
+    Status = PcieRCScreenSetup (RCIndex, mPrivateData);
+    ASSERT_EFI_ERROR (Status);
+  }
+
+  return Status;
+}
diff --git a/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.uni b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.uni
new file mode 100644
index 000000000000..776eaa476787
--- /dev/null
+++ b/Platform/Ampere/JadePkg/Library/PcieBoardLib/PcieBoardScreen.uni
@@ -0,0 +1,99 @@
+//
+// Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+
+#langdef en-US "English"
+
+#string STR_PCIE_FORM                   #language en-US "PCIE Root Complex Configuration"
+#string STR_PCIE_FORM_HELP              #language en-US "Configure Root Complex"
+
+#string STR_PCIE_FORM_SEPERATE_LINE     #language en-US ""
+
+/////
+
+#string STR_PCIE_GOTO                   #language en-US ""
+#string STR_PCIE_GOTO_HELP              #language en-US "Change On Board Root Complex Settings."
+
+#string STR_PCIE_RC_STATUS              #language en-US ""
+#string STR_PCIE_RC_STATUS_HELP         #language en-US "Enable / Disable Root Complex"
+
+#string STR_PCIE_RCA_BIFUR              #language en-US "Bifurcation x16"
+#string STR_PCIE_RCA_BIFUR_HELP         #language en-US "Set bifurcation mode for x16 Root Complex Type-A"
+
+#string STR_PCIE_RCB_LO_BIFUR           #language en-US "Bifurcation 1st x8"
+#string STR_PCIE_RCB_LO_BIFUR_HELP      #language en-US "Set bifurcation mode for 1st x8 Root Complex Type-B"
+
+#string STR_PCIE_RCB_HI_BIFUR           #language en-US "Bifurcation 2nd x8"
+#string STR_PCIE_RCB_HI_BIFUR_HELP      #language en-US "Set bifurcation mode for 2nd x8 Root Complex Type-B"
+
+/////
+
+#string STR_PCIE_RC0_FORM               #language en-US "Root Complex 0 Configuration"
+#string STR_PCIE_RC0_FORM_HELP          #language en-US "Root Complex 0 Configuration"
+
+#string STR_PCIE_RC1_FORM               #language en-US "Root Complex 1 Configuration"
+#string STR_PCIE_RC1_FORM_HELP          #language en-US "Root Complex 1 Configuration"
+
+#string STR_PCIE_RC2_FORM               #language en-US "Root Complex 2 Configuration"
+#string STR_PCIE_RC2_FORM_HELP          #language en-US "Root Complex 2 Configuration"
+
+#string STR_PCIE_RC3_FORM               #language en-US "Root Complex 3 Configuration"
+#string STR_PCIE_RC3_FORM_HELP          #language en-US "Root Complex 3 Configuration"
+
+#string STR_PCIE_RC4_FORM               #language en-US "Root Complex 4 Configuration"
+#string STR_PCIE_RC4_FORM_HELP          #language en-US "Root Complex 4 Configuration"
+
+#string STR_PCIE_RC5_FORM               #language en-US "Root Complex 5 Configuration"
+#string STR_PCIE_RC5_FORM_HELP          #language en-US "Root Complex 5 Configuration"
+
+#string STR_PCIE_RC6_FORM               #language en-US "Root Complex 6 Configuration"
+#string STR_PCIE_RC6_FORM_HELP          #language en-US "Root Complex 6 Configuration"
+
+#string STR_PCIE_RC7_FORM               #language en-US "Root Complex 7 Configuration"
+#string STR_PCIE_RC7_FORM_HELP          #language en-US "Root Complex 7 Configuration"
+
+#string STR_PCIE_RC8_FORM               #language en-US "Root Complex 8 Configuration"
+#string STR_PCIE_RC8_FORM_HELP          #language en-US "Root Complex 8 Configuration"
+
+#string STR_PCIE_RC9_FORM               #language en-US "Root Complex 9 Configuration"
+#string STR_PCIE_RC9_FORM_HELP          #language en-US "Root Complex 9 Configuration"
+
+#string STR_PCIE_RC10_FORM              #language en-US "Root Complex 10 Configuration"
+#string STR_PCIE_RC10_FORM_HELP         #language en-US "Root Complex 10 Configuration"
+
+#string STR_PCIE_RC11_FORM              #language en-US "Root Complex 11 Configuration"
+#string STR_PCIE_RC11_FORM_HELP         #language en-US "Root Complex 11 Configuration"
+
+#string STR_PCIE_RC12_FORM              #language en-US "Root Complex 12 Configuration"
+#string STR_PCIE_RC12_FORM_HELP         #language en-US "Root Complex 12 Configuration"
+
+#string STR_PCIE_RC13_FORM              #language en-US "Root Complex 13 Configuration"
+#string STR_PCIE_RC13_FORM_HELP         #language en-US "Root Complex 13 Configuration"
+
+#string STR_PCIE_RC14_FORM              #language en-US "Root Complex 14 Configuration"
+#string STR_PCIE_RC14_FORM_HELP         #language en-US "Root Complex 14 Configuration"
+
+#string STR_PCIE_RC15_FORM              #language en-US "Root Complex 15 Configuration"
+#string STR_PCIE_RC15_FORM_HELP         #language en-US "Root Complex 15 Configuration"
+
+#string STR_PCIE_BIFUR_SELECT_VALUE0    #language en-US "x16"
+#string STR_PCIE_BIFUR_SELECT_VALUE1    #language en-US "x8+x8"
+#string STR_PCIE_BIFUR_SELECT_VALUE2    #language en-US "x8+x4+x4"
+#string STR_PCIE_BIFUR_SELECT_VALUE3    #language en-US "x4+x4+x4+x4"
+#string STR_PCIE_BIFUR_SELECT_VALUE4    #language en-US "x8"
+#string STR_PCIE_BIFUR_SELECT_VALUE5    #language en-US "x4+x4"
+#string STR_PCIE_BIFUR_SELECT_VALUE6    #language en-US "x4+x2+x2"
+#string STR_PCIE_BIFUR_SELECT_VALUE7    #language en-US "x2+x2+x2+x2"
+
+#string STR_PCIE_SOCKET                 #language en-US "Socket"
+#string STR_PCIE_SOCKET_HELP            #language en-US "Socket 0 - Master; Socket 1 - Slave"
+#string STR_PCIE_SOCKET_VALUE           #language en-US ""
+
+#string STR_PCIE_RC_TYPE                #language en-US "Type"
+#string STR_PCIE_RC_TYPE_HELP           #language en-US "Type-A: x16 lanes bifurcated down to x4; Type-B: 2 of x8 lanes, each bifurcated down to x2"
+#string STR_PCIE_RC_TYPE_VALUE          #language en-US ""
+
+#string STR_PCIE_SMMU_PMU_PROMPT        #language en-US "SMMU Pmu"
+#string STR_PCIE_SMMU_PMU_HELP          #language en-US "Enable/Disable PMU feature for SMMU"
-- 
2.17.1



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